Server application error Solution

My solution steps:

1. Stop IIS

2. view the IIS configuration database password:

In the first step, modify the relevant files so that the displayed ***** is displayed:
Find adsutil. vbs in c: \ Inetpub \ adminscripts (some paths may be different depending on the settings when installing the system)
Open this file in Notepad
Search for issecureproperty = true (only one matching field exists in one Condition Statement)
Change issecureproperty = true to issecureproperty = false
Save and close.

Step 2: run the command to view the password:
Start-> Run and Enter cmd and press enter to open the command line tool.
Enter cd c: \ Inetpub \ adminscripts (enter the adminscripts directory, depending on your machine path)
Command for getting IWAM account password: cscript.exe adsutil. vbs get w3svc/wamuserpass
You can also get the IUSR account password.
Command: cscript.exe adsutil. vbs get w3svc/anonymoususerpass
Enter the preceding command and press enter to obtain the IWAM and IUSR passwords respectively.

3. Right-click my computer> manage to open the computer management interface.
Open local users and groups-> Users
Right-click to start the IIS process account IWAM _ ***** (Note: ***** is generally the computer name)
Click set password to set the IWAM password you just obtained.

4. Change the password in the component service
Start-> Run and Enter cmd and press enter to open the command line tool.
Enter cd c: \ Inetpub \ adminscripts first
Enter cscript.exe synciwam. vbs-V

The system will prompt a lot of characters, so you don't need to worry about it. Close the window and start IIS. The error message is missing.